|Application||PANs and WSNs||PANs and WSNs||PANs|
|Host resources (kByte)||2(0 with SensRcoreâ„¢)||100||250|
|Battery life (with coin-cell battery)Â§||3+ years||4 to 6 months*||1 to 7 days*|
|Max. network size (nodes)||2^32||2^64||7|
|Over the air transmission rate (kbit/s)||1000||250||1000|
|Required PCB area (mm2)||125||Depends on architecture||Depends on architecture|
|Range (metres)||1 to 30||1 to 100+||1 to 10+|
|Success metrics||Ultra-low power, cost||Power, cost||Cost, convenience|
|Supported networks||Peer-to-peer, star, tree, mesh||Peer-to-peer, star, tree, mesh||Peer-to-peer, star|
|Min. node configuration||Transmit only or transceiver||Transceiver||Transceiver|
Â§ 8 Byte data message, 2 second message interval, 24 hours per day, 7 days per week.
* Theoretical only. Peak current requirement for ZigBee and Bluetooth exceeds coin cell battery capability so coin cell operation is impractical.
Current data on the not-yet-released Bluetooth Low Energy indicates that it will cost 25%-35% more per sensor node and consume a minimum of 25% more power for the same data transmitted.
In addition, ZigBeeâ€™s relatively complex protocol increases the external micro controller burden compared with ANT, demanding micro controllers that are more powerful and increasing system cost by 60 percent. ANTâ€™s requirement for external host resources is eliminated when using SensRcoreâ„¢.
In operation, ANTâ€™s ultra-low power consumption makes ZigBee look distinctly power hungry. In similar applications with similar usage patterns, ANT transceivers using coin cell-type batteries can extend battery life up to four years compared to just a few months for ZigBee.